Improvement in amalgamators



@NITE STATES ATENT einen.

JOSEPH KENYON, OF BLACK HAWK, COLORADO.

IMPROVEMENT IN AMALGAMATORS.

Specification forming part of Letters Patent No. 13,589, (lated July 19,1864.

To aZZ whom it may concern,.-

Be it known that I, JOSEPH KENYON, of Black Hawk, in the Territory ofColorado, have invented, made, and applied to use a certain new anduseful Improvement in Amalgamators; and I do hereby declare thefollowing to be a full, clear, and exact'description of the stme,reference beinghad to the annexed drawings, making part of thisspecification, where- 1n- Figure l is a plan of said amalgamator withpart of lthe upper crossbar removed. Fig. 2 is a vertical section ofsaid apparatus with the mullers on one side in elevation, and Fig. 3 isa detachee elevation of said mullers.

Similar marks of reference denote the same parts.

In amalgalnators heretofore employed a circular basin has been used inwhich mullers are fitted to revolve and rub and grind the ores afterthey have been comminuted in order.

that the mercury contained in such vessel may amalgamate with the goldin the ore. In this class of amalgamators the ores sometimes accumulateand are pushed along in front of the mullers, and do not all comeequally in contact with the Quicksilver, and the water in the pan, thatcarries off the earthy matters, receives a whirling and centrifugalmotion that is a-ptto throw the particles of amalgam ott' with thetailings.

The nature of my said invention consists in a series of mullersrevolving upon ashaft that is itself revolved around the pan, so thateach mnller travels as a cycloidal curve around in the pan, and a muchgreater rubbing and amalgamating action is obtained, and the centrifugalaction of the water is entirely prevented, so that the same remainsnearly level and the banking up ot' the earthy matter in front of themullers is prevented.

I also tit my mullers in such a manner that they can be gradually raisedfrom the bottom ofthe pan while revolving, so as to maintain theagitation on the water for washing the e irthy matters out of theamalgam while said amalgam gradually subsides in the pan, thereby therewill be no loss of amalgam when the waterand earthy matters are drawnoft'.

In the drawings, a. is a vertical shaft propelled by the gearing b and cand shaft d to competent power. The shaft a is :in the center of thecircular or ring-formed pan e, which may be formed with a double botttn, f, so

that steam may be introduced in cold weather l.v

the mullers and avoiding f1 to maint-ain a proper temperature of the contents of the pan.

g isacross-head set on a feather upon the upper end of the shaft a,which crosshead is fitted witha yoke, h, through which the screw t'passes and rests upon the end'of the shaft a, so that the crosshead gcan be either raised or lowered by turning the screw Ii, even while theapparatus is in motion.

At the ends of the cross-head g pendent frames or bows lek are firmlyattached, carrying the vertical shafts l Z, upon which are pinions m m,gearing into the stationary wheel r, and said pinions are wider than thewheel n, so as to remain in gear when the cross-head is raised by theyoke-screw At the lower end of each shaft l are arms o o, which may betwo ormore i-u number. I have shown four such arms to each shaft l, andupon their ends are irons pp, receiving the mullers q g. Y

It will now be seen that as the shafts l l are themselves carried aroundAwith the crosshead g the said shafts l have a rotation imparted tothem, which moves the mullers and causes them to travel in a cycloidalline around the pan, both thoroughly mixing the pulverized ore andwater, and rubbing the same with the amalgam upon the-.bottom of thepan, thereby at the same timepreventing any banking up of the earthy rfatter in front of y centrifugal action on the water, so that ne waterremains nearly level.

What I cla-im, and desire to secure by Letters Patent, is

l. A series of mullers connected by arms or supports with a shaft thatrevolves in its own bearings and also moves around the pan, so that eachmuller receives a cycloidal movement, for the purposes and substantiallyas specified.

2. Thearrangein ent of the cross-head g, bows It, shafts l, wheel n, andpinions m m, for giving motion to the mullers, as set forth.

3. The yoke h and screw t', in combination with the cross-head g andcycloidal revolving mullers carried by the shafts I, as and for thepurposes specified. v Y

In witness whereof I have hereunto set my signature this 21st May, 1864.

JOSEPH KENYON.

Witnesses:

Tiros. GEO. HAROLD, CHAs. H. SMITH.

